1
40
6
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Text
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URL Address
<a href="http://doi.org/10.1016/j.pain.2004.06.020" target="_blank" rel="noreferrer">http://doi.org/10.1016/j.pain.2004.06.020</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Potential links between leukocytes and antinociception
Publisher
An entity responsible for making the resource available
Pain
Date
A point or period of time associated with an event in the lifecycle of the resource
2004
Subject
The topic of the resource
Humans; Animals; Leukocytes/physiology; Neuroimmunomodulation/physiology; Nociceptors/physiology
Creator
An entity primarily responsible for making the resource
Brack A; Stein C
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1016/j.pain.2004.06.020" target="_blank" rel="noreferrer">10.1016/j.pain.2004.06.020</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
The nature or genre of the resource
Journal Article
Description
An account of the resource
2004
2004
Animals
Backlog
Brack A
Humans
Journal Article
Leukocytes/physiology
Neuroimmunomodulation/physiology
Nociceptors/physiology
Pain
Stein C
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Citation List Month
Backlog
URL Address
<a href="http://doi.org/10.1016/j.pain.2004.08.029" target="_blank" rel="noreferrer">http://doi.org/10.1016/j.pain.2004.08.029</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Control of inflammatory pain by chemokine-mediated recruitment of opioid-containing polymorphonuclear cells
Publisher
An entity responsible for making the resource available
Pain
Date
A point or period of time associated with an event in the lifecycle of the resource
2004
Subject
The topic of the resource
Male; Pain Measurement; Analysis of Variance; Animals; Rats; Non-U.S. Gov't; Research Support; Comparative Study; Dose-Response Relationship; Drug; Receptors; Naloxone/pharmacology; Freund's Adjuvant; Wistar; Flow Cytometry/methods; Antibodies/pharmacology; Cell Count/methods; Cell Movement/physiology; Chemokines; Chemokines/immunology/physiology; Corticotropin-Releasing Hormone/therapeutic use; CXC/immunology/metabolism; Drug Administration Routes; Enzyme-Linked Immunosorbent Assay/methods; Gene Expression Regulation/physiology; Immunohistochemistry/methods; Intercellular Signaling Peptides and Proteins/immunology/metabolism; Interleukin-8B/metabolism; Narcotics/metabolism; Neurogenic Inflammation/chemically induced/complications/therapy; Neutrophils/metabolism; Pain Threshold/drug effects; Pain/etiology/therapy
Creator
An entity primarily responsible for making the resource
Brack A; Rittner HL; Machelska H; Leder K; Mousa SA; Schafer M; Stein C
Description
An account of the resource
Opioid-containing leukocytes can counteract inflammatory hyperalgesia. Under stress or after local injection of corticotropin releasing factor (CRF), opioid peptides are released from leukocytes, bind to opioid receptors on peripheral sensory neurons and mediate antinociception. Since polymorphonuclear cells (PMN) are the predominant opioid-containing leukocyte subpopulation in early inflammation, we hypothesized that PMN and their recruitment by chemokines are important for peripheral opioid-mediated antinociception at this stage. Rats were intraplantarly injected with complete Freund's adjuvant (CFA). Using flow cytometry, immunohistochemistry, and ELISA, leukocyte subpopulations, chemokine receptor (CXCR2) expression on opioid-containing leukocytes and the CXCR2 ligands keratinocyte-derived chemokine (KC), macrophage inflammatory protein-2 (MIP-2) and cytokine-induced neutrophil chemoattractant-2 (CINC-2) were quantified. Paw pressure threshold (PPT) was determined before and after intraplantar and subcutaneous injection of CRF with or without naloxone. PMN depletion was achieved by intravenous injection of an antiserum. Chemokines were blocked by intraplantar injection of anti-MIP-2 and/or anti-KC antiserum. We found that at 2 h post CFA (i) intraplantar but not subcutaneous injection of CRF produced dose-dependent and naloxone-reversible antinociception (P0.05, ANOVA). In summary, in early inflammation peripheral opioid-mediated antinociception is critically dependent on PMN and their recruitment by CXCR2 chemokines.
2004
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1016/j.pain.2004.08.029" target="_blank" rel="noreferrer">10.1016/j.pain.2004.08.029</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
The nature or genre of the resource
Journal Article
2004
Analysis of Variance
Animals
Antibodies/pharmacology
Backlog
Brack A
Cell Count/methods
Cell Movement/physiology
Chemokines
Chemokines/immunology/physiology
Comparative Study
Corticotropin-Releasing Hormone/therapeutic use
CXC/immunology/metabolism
Dose-Response Relationship
Drug
Drug Administration Routes
Enzyme-Linked Immunosorbent Assay/methods
Flow Cytometry/methods
Freund's Adjuvant
Gene Expression Regulation/physiology
Immunohistochemistry/methods
Intercellular Signaling Peptides and Proteins/immunology/metabolism
Interleukin-8B/metabolism
Journal Article
Leder K
Machelska H
Male
Mousa SA
Naloxone/pharmacology
Narcotics/metabolism
Neurogenic Inflammation/chemically induced/complications/therapy
Neutrophils/metabolism
Non-U.S. Gov't
Pain
Pain Measurement
Pain Threshold/drug effects
Pain/etiology/therapy
Rats
Receptors
Research Support
Rittner HL
Schafer M
Stein C
Wistar
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Citation List Month
Backlog
URL Address
<a href="http://doi.org/10.1097/00000542-200301000-00030" target="_blank" rel="noreferrer">http://doi.org/10.1097/00000542-200301000-00030</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Modulation of peripheral endogenous opioid analgesia by central afferent blockade
Publisher
An entity responsible for making the resource available
Anesthesiology
Date
A point or period of time associated with an event in the lifecycle of the resource
2003
Subject
The topic of the resource
Male; Analgesics; Animals; Rats; Injections; Immunohistochemistry; Spinal; Enkephalin; beta-Endorphin/metabolism; Wistar; Pain Threshold/drug effects; Neurons; Afferent/drug effects; Central Nervous System/drug effects; Endorphins/metabolism/physiology; Flow Cytometry; Foot/pathology; Inflammation/pathology; Methionine/metabolism; Morphine/administration & dosage/pharmacology; Opioid/administration & dosage/pharmacology; Peripheral Nerves/drug effects; Psychomotor Performance/drug effects
Creator
An entity primarily responsible for making the resource
Schmitt TK; Mousa SA; Brack A; Schmidt DK; Rittner HL; Welte M; Schafer M; Stein C
Description
An account of the resource
BACKGROUND: Peripheral tissue injury causes a migration of opioid peptide-containing immune cells to the inflamed site. The subsequent release and action of these peptides on opioid receptors localized on peripheral sensory nerve terminals causes endogenous analgesia. The spinal application of opioid drugs blocks the transmission of nociceptive information from peripheral injury. This study investigates the influence of exogenous spinal opioid analgesia on peripheral endogenous opioid analgesia. METHODS: Six and forty-eight hours after initiation of continuous intrathecal morphine infusion and administration of Freund's complete adjuvant into the hind paw of rats, antinociceptive and antiinflammatory effects were measured by paw pressure threshold, paw volume, and paw temperature, respectively. Inflammation and quantity of opioid-containing cells were evaluated by immunocytochemistry and flow cytometry. Cold water swim stress-induced endogenous analgesia was examined 24 h after discontinuation of intrathecal morphine administration. RESULTS: Intrathecal morphine (10 micro g/h) resulted in a significant and stable increase of paw pressure threshold ( P 0.05). At 48 but not at 6 h after Freund's complete adjuvant, the number of beta-endorphin-containing cells and cold water swim-induced antinociception were significantly reduced in intrathecal morphine-treated rats compared with those treated with intrathecal vehicle ( P< 0.05). CONCLUSIONS: These findings suggest an interplay of central and peripheral mechanisms of pain control. An effective central inhibition of pain apparently signals a reduced need for recruitment of opioid-containing immune cells to injured sites.
2003
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1097/00000542-200301000-00030" target="_blank" rel="noreferrer">10.1097/00000542-200301000-00030</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
The nature or genre of the resource
Journal Article
2003
Afferent/drug effects
Analgesics
Anesthesiology
Animals
Backlog
beta-Endorphin/metabolism
Brack A
Central Nervous System/drug effects
Endorphins/metabolism/physiology
Enkephalin
Flow Cytometry
Foot/pathology
Immunohistochemistry
Inflammation/pathology
Injections
Journal Article
Male
Methionine/metabolism
Morphine/administration & dosage/pharmacology
Mousa SA
Neurons
Opioid/administration & dosage/pharmacology
Pain Threshold/drug effects
Peripheral Nerves/drug effects
Psychomotor Performance/drug effects
Rats
Rittner HL
Schafer M
Schmidt DK
Schmitt TK
Spinal
Stein C
Welte M
Wistar
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Citation List Month
Backlog
URL Address
<a href="http://doi.org/10.1097/00000542-200401000-00024" target="_blank" rel="noreferrer">http://doi.org/10.1097/00000542-200401000-00024</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Mobilization of opioid-containing polymorphonuclear cells by hematopoietic growth factors and influence on inflammatory pain
Publisher
An entity responsible for making the resource available
Anesthesiology
Date
A point or period of time associated with an event in the lifecycle of the resource
2004
Subject
The topic of the resource
Male; Animals; Rats; Biomarkers of Pain; Inflammation/complications; RNA; Pain Measurement/drug effects; Radioimmunoassay; Pain/drug therapy/physiopathology; Wistar; Neutrophils/metabolism; Messenger/biosynthesis; DNA Primers; Reverse Transcriptase Polymerase Chain Reaction; Flow Cytometry; Cell Adhesion Molecules/pharmacology; Cell Separation; Chemokines/biosynthesis; Chemotaxis; Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology; Hindlimb/physiology; Leukocyte/drug effects; Light; Narcotics/metabolism/pharmacology; Stem Cell Factor/pharmacology
Creator
An entity primarily responsible for making the resource
Brack A; Rittner HL; Machelska H; Beschmann K; Sitte N; Schafer M; Stein C
Description
An account of the resource
BACKGROUND: Leukocytes can control inflammatory pain by secretion of opioid peptides, stimulated by cold-water swimming or local injection of corticotropin-releasing factor, and subsequent activation of opioid receptors on peripheral sensory neurons. This study investigated whether mobilization of polymorphonuclear cells (PMN) by granulocyte colony-stimulating factor (G-CSF) and stem cell factor (SCF) enhances immigration of opioid-containing PMN and peripheral opioid analgesia in rats with Freund complete adjuvant-induced hind paw inflammation. METHODS: In circulating PMN of rats treated with G-CSF+SCF and sham-treated rats, opioid peptide content was measured by radioimmunoassay. Expression of adhesion molecules (CD62L, CD49d, CD18), in vitro migration in the Boyden chamber, and infiltrating leukocytes were analyzed by flow cytometry. Chemokine messenger RNA transcription was quantified by LightCycler polymerase chain reaction. Paw pressure threshold was measured at baseline, after cold-water swimming, and after injection of corticotropin-releasing factor. RESULTS: G-CSF+SCF treatment increased circulating PMN (11-fold, P 0.05). CONCLUSIONS: G-CSF+SCF mobilized circulating opioid-containing PMN but had a minor influence on cell migration and peripheral analgesia, probably because of the low expression of chemokines in the inflamed paw and one of the decreased beta-endorphin content in PMN.
2004
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1097/00000542-200401000-00024" target="_blank" rel="noreferrer">10.1097/00000542-200401000-00024</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
The nature or genre of the resource
Journal Article
2004
Anesthesiology
Animals
Backlog
Beschmann K
Biomarkers of Pain
Brack A
Cell Adhesion Molecules/pharmacology
Cell Separation
Chemokines/biosynthesis
Chemotaxis
DNA Primers
Flow Cytometry
Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology
Hindlimb/physiology
Inflammation/complications
Journal Article
Leukocyte/drug effects
Light
Machelska H
Male
Messenger/biosynthesis
Narcotics/metabolism/pharmacology
Neutrophils/metabolism
Pain Measurement/drug effects
Pain/drug therapy/physiopathology
Radioimmunoassay
Rats
Reverse Transcriptase Polymerase Chain Reaction
Rittner HL
RNA
Schafer M
Sitte N
Stein C
Stem Cell Factor/pharmacology
Wistar
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Citation List Month
Backlog
URL Address
<a href="http://doi.org/10.1097/00000542-200407000-00031" target="_blank" rel="noreferrer">http://doi.org/10.1097/00000542-200407000-00031</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Tissue monocytes/macrophages in inflammation: hyperalgesia versus opioid-mediated peripheral antinociception
Publisher
An entity responsible for making the resource available
Anesthesiology
Date
A point or period of time associated with an event in the lifecycle of the resource
2004
Subject
The topic of the resource
Male; Analgesics; Animals; Rats; Biomarkers of Pain; Injections; Pain Measurement/drug effects; Freund's Adjuvant; Wistar; Flow Cytometry; Foot/pathology; Opioid/administration & dosage/pharmacology; Clodronic Acid/pharmacokinetics/pharmacology; Fentanyl/administration & dosage/pharmacology; Heat; Hyperalgesia/chemically induced/pathology/psychology; Inflammation/chemically induced/pathology; Liposomes; Macrophages/pathology; Monocytes/pathology; Non-Narcotic/pharmacokinetics/pharmacology; Pressure
Creator
An entity primarily responsible for making the resource
Brack A; Labuz D; Schiltz A; Rittner HL; Machelska H; Schafer M; Reszka R; Stein C
Description
An account of the resource
BACKGROUND: Opioid-containing leukocytes migrate to peripheral sites of inflammation. On exposure to stress, opioid peptides are released, bind to opioid receptors on peripheral sensory neurons, and induce endogenous antinociception. In later stages of Freund's complete adjuvant-induced local inflammation, monocytes/macrophages are a major opioid-containing leukocyte subpopulation, but these cells also produce proalgesic cytokines. In this study, the role of tissue monocytes/macrophages in hyperalgesia and in peripheral opioid-mediated antinociception was investigated. METHODS: After intraplantar injection of Freund's adjuvant, leukocyte subpopulations and opioid-containing leukocytes were analyzed by flow cytometry in the inflamed paw in the presence or absence of monocyte/macrophage depletion by intraplantar injection of clodronate-containing liposomes (phosphate-buffered saline and empty liposomes served as controls). Paw volume was measured with a plethysmometer. Hyperalgesia was determined by measuring heat-induced paw withdrawal latency and paw pressure threshold. Paw pressure threshold was also measured after swim stress and injection of fentanyl. RESULTS: At 48 and 96 h of inflammation, it was found that (1). monocytes/macrophages were the largest leukocyte subpopulation (> 55% of all leukocytes) and the predominant producers of opioid peptides (71-77% of all opioid-containing leukocytes in the paw), (2). clodronate-containing liposomes depleted monocytes/macrophages by 30-35% (P 0.05), and (4) opioid-containing leukocytes and swim stress but not fentanyl-induced antinociception were significantly decreased by clodronate-containing liposomes (P 0.05, all by t test; opioid-containing cells and swim stress-induced increase of paw pressure threshold were reduced by 35-42% and 20%, respectively). CONCLUSION: Partial depletion of tissue monocytes/macrophages impairs peripheral endogenous opioid-mediated antinociception without affecting hyperalgesia.
2004
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1097/00000542-200407000-00031" target="_blank" rel="noreferrer">10.1097/00000542-200407000-00031</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
The nature or genre of the resource
Journal Article
2004
Analgesics
Anesthesiology
Animals
Backlog
Biomarkers of Pain
Brack A
Clodronic Acid/pharmacokinetics/pharmacology
Fentanyl/administration & dosage/pharmacology
Flow Cytometry
Foot/pathology
Freund's Adjuvant
Heat
Hyperalgesia/chemically induced/pathology/psychology
Inflammation/chemically induced/pathology
Injections
Journal Article
Labuz D
Liposomes
Machelska H
Macrophages/pathology
Male
Monocytes/pathology
Non-Narcotic/pharmacokinetics/pharmacology
Opioid/administration & dosage/pharmacology
Pain Measurement/drug effects
Pressure
Rats
Reszka R
Rittner HL
Schafer M
Schiltz A
Stein C
Wistar
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Citation List Month
Backlog
URL Address
<a href="http://doi.org/10.1097/00000542-200108000-00036" target="_blank" rel="noreferrer">http://doi.org/10.1097/00000542-200108000-00036</a>
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Opioid peptide-expressing leukocytes: identification, recruitment, and simultaneously increasing inhibition of inflammatory pain
Publisher
An entity responsible for making the resource available
Anesthesiology
Date
A point or period of time associated with an event in the lifecycle of the resource
2001
Subject
The topic of the resource
Male; Pain Measurement; Analgesia; Animals; Rats; beta-Endorphin/blood; Biomarkers of Pain; Pain/physiopathology; Immunohistochemistry; Radioimmunoassay; Biomarkers Reference List; Wistar; Antibodies; Antigens; CD45/isolation & purification; Fluorescent Dyes; Hematopoietic Stem Cells/immunology; Immunomagnetic Separation; Inflammation/chemically induced/metabolism/pathology; Leukocytes/metabolism; Lymphocytes/immunology; Monoclonal/pharmacology; Opioid Peptides/biosynthesis
Creator
An entity primarily responsible for making the resource
Rittner HL; Brack A; Machelska H; Mousa SA; Bauer M; Schafer M; Stein C
Description
An account of the resource
BACKGROUND: Inflammatory pain can be effectively controlled by an interaction of opioid receptors on peripheral sensory nerve terminals with opioid peptides released from immune cells upon stressful stimulation. To define the source of opioid peptide production, we sought to identify and quantify populations of opioid-containing cells during the course of Freund's complete adjuvant-induced hind paw inflammation in the rat. In parallel, we examined the development of stress-induced local analgesia in the paw. METHODS: At 2, 6, and 96 h after Freund's complete adjuvant inoculation, cells were characterized by flow cytometry using a monoclonal pan-opioid antibody (3E7) and antibodies against cell surface antigens and by immunohistochemistry using a polyclonal antibody to beta-endorphin. After magnetic cell sorting, the beta-endorphin content was quantified by radioimmunoassay. Pain responses before and after cold water swim stress were evaluated by paw pressure thresholds. RESULTS: In early inflammation, 66% of opioid peptide-producing (3E7+) leukocytes were HIS48+ granulocytes. In contrast, at later stages (96 h), the majority of 3E7+ immune cells were ED1+ monocytes or macrophages (73%). During the 4 days after Freund's complete adjuvant inoculation, the number of 3E7+ cells increased 5.6-fold (P < 0.001, Kruskal-Wallis test) and the beta-endorphin content in the paw multiplied 3.9-fold (P < 0.05, Kruskal-Wallis test). In parallel, cold water swim stress-induced analgesia increased by 160% (P < 0.01, analysis of variance). CONCLUSIONS: The degree of endogenous pain inhibition is proportional to the number of opioid peptide-producing cells, and distinct leukocyte lineages contribute to this function at different stages of inflammation. These mechanisms may be important for understanding pain in immunosuppressed states such as cancer, diabetes, or AIDS and for the design of novel therapeutic strategies in inflammatory diseases.
2001
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1097/00000542-200108000-00036" target="_blank" rel="noreferrer">10.1097/00000542-200108000-00036</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
The nature or genre of the resource
Journal Article
2001
Analgesia
Anesthesiology
Animals
Antibodies
Antigens
Backlog
Bauer M
beta-Endorphin/blood
Biomarkers of Pain
Biomarkers Reference List
Brack A
CD45/isolation & purification
Fluorescent Dyes
Hematopoietic Stem Cells/immunology
Immunohistochemistry
Immunomagnetic Separation
Inflammation/chemically induced/metabolism/pathology
Journal Article
Leukocytes/metabolism
Lymphocytes/immunology
Machelska H
Male
Monoclonal/pharmacology
Mousa SA
Opioid Peptides/biosynthesis
Pain Measurement
Pain/physiopathology
Radioimmunoassay
Rats
Rittner HL
Schafer M
Stein C
Wistar